WO2010074235A1 - Équipement utilisateur et procédé de communication mobile - Google Patents

Équipement utilisateur et procédé de communication mobile Download PDF

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Publication number
WO2010074235A1
WO2010074235A1 PCT/JP2009/071603 JP2009071603W WO2010074235A1 WO 2010074235 A1 WO2010074235 A1 WO 2010074235A1 JP 2009071603 W JP2009071603 W JP 2009071603W WO 2010074235 A1 WO2010074235 A1 WO 2010074235A1
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WIPO (PCT)
Prior art keywords
transmission power
maximum transmission
frequency band
predetermined
channel
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PCT/JP2009/071603
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English (en)
Japanese (ja)
Inventor
啓之 石井
Original Assignee
株式会社エヌ・ティ・ティ・ドコモ
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Application filed by 株式会社エヌ・ティ・ティ・ドコモ filed Critical 株式会社エヌ・ティ・ティ・ドコモ
Priority to US13/142,337 priority Critical patent/US20110319119A1/en
Publication of WO2010074235A1 publication Critical patent/WO2010074235A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0039—Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0066—Requirements on out-of-channel emissions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Definitions

  • the present invention relates to the technical field of mobile communication, and more particularly, to a user apparatus and a mobile communication method in a mobile communication system using next-generation mobile communication technology.
  • W-CDMA wideband code division multiple access
  • HSDPA high-speed downlink packet access
  • HSUPA high-speed uplink packet access
  • LTE long term evolution
  • E-UTRA Term Evolution
  • an orthogonal frequency division multiple access (OFDMA) method is adopted for the downlink, and a single carrier frequency division multiple access (SC-FDMA) is used for the uplink.
  • SC-FDMA single carrier frequency division multiple access
  • Single-Carrier Frequency Division Multiple Access is employed (for example, see Non-Patent Document 1).
  • the OFDMA scheme is a multi-carrier transmission scheme in which a frequency band is divided into a plurality of narrow frequency bands (subcarriers) and data is transmitted on each subcarrier. According to the OFDMA scheme, it is expected that high-speed transmission can be realized and frequency utilization efficiency can be improved by arranging subcarriers densely while being orthogonal to each other on the frequency axis.
  • the SC-FDMA scheme is a single carrier transmission scheme in which a frequency band is divided for each terminal and transmitted using a different frequency band among a plurality of terminals. According to the SC-FDMA scheme, the interference between user apparatuses can be reduced easily and effectively, and the variation in transmission power can be reduced. Therefore, the SC-FDMA scheme reduces the power consumption of the user apparatus. And from the viewpoint of expanding coverage and the like.
  • communication is performed by allocating one or more resource blocks to a user apparatus in both downlink and uplink.
  • the resource block is shared by one or more user apparatuses in the mobile communication system.
  • the base station apparatus determines, for each subframe (Sub-frame) (1 ms in the LTE scheme), to which user apparatus among the one or two or more user apparatuses, the resource block is allocated. (Such a process is called "scheduling").
  • the base station apparatus is configured to transmit a shared channel signal to the user apparatus selected by scheduling using one or more resource blocks.
  • the user apparatus selected by scheduling is configured to transmit a shared channel signal to the base station apparatus using one or more resource blocks.
  • the control channel used for such signaling is called a “physical downlink control channel (PDCCH)” or “downlink L1 / L2 control channel (DL-L1 / L2 control channel)” in the LTE scheme.
  • PDCCH physical downlink control channel
  • DL-L1 / L2 control channel downlink L1 / L2 control channel
  • downlink scheduling information For example, “downlink scheduling information”, “uplink scheduling grant”, and the like are mapped to the information of the physical downlink control channel.
  • DCI Downlink Control Information
  • DCI format 0 corresponds to an uplink scheduling grant
  • DCI format 1 corresponds to downlink scheduling information
  • DCI format 2 corresponds to downlink scheduling information (for example, Non-Patent Document 1 and 2).
  • the above-described downlink scheduling information and uplink scheduling grant correspond to information for signaling which user apparatus is assigned the above-described shared channel.
  • the downlink scheduling information includes, for example, “downlink resource block allocation information”, “UE ID (C-RNTI)”, “number of streams”, “Information about coding vector”, “data size”, “modulation method”, “information about hybrid automatic repeat request (HARQ)” and the like are included.
  • the uplink scheduling grant described above includes, for example, “uplink resource allocation information”, “UE ID (C-RNTI)”, “data size”, “modulation scheme”, and the like regarding the uplink shared channel. “Uplink transmission power control command”, “demodulation reference signal information”, and the like are included.
  • a plurality of mobile communication systems use the frequency band assigned to the mobile phone system, and the frequency bands used in each mobile communication system are separated.
  • FIG. 15 shows a usage situation in the frequency band 1884.5 MHz to 1980 MHz in Japan.
  • the frequency band 1920 MHz to 1980 MHz is scheduled to be allocated to the LTE uplink. Further, in a frequency band smaller than the frequency band 1920 MHz, specifically, the PHS system is operated in the frequency band 1884.5 MHz to 1919.6 MHz.
  • the frequency band from 1920 MHz to 1980 MHz is defined as “E-UTRA Band 1” in 3GPP (see FIG. 5 described later).
  • a mobile communication system using radio waves prevents interference between systems by separating frequency bands to be used.
  • a transmitter that radiates radio waves radiates unnecessary waves (hereinafter referred to as adjacent channel interference) to frequency bands outside the frequency band used by its own system. Even if the frequency bands to be used are separated, a plurality of adjacent mobile communication systems interfere with each other. Therefore, when the power level of the above-mentioned unnecessary wave is large, it has a great adverse effect on the adjacent mobile communication system.
  • adjacent channel interference unnecessary waves
  • the characteristics regarding the adjacent channel interference and the spurious radiation are defined in each mobile communication system.
  • the user apparatus needs to be equipped with a highly linear power amplifier (power amplifier).
  • Non-Patent Document 3 defines “MPR (Maximum Power Reduction)” based on a modulation scheme such as QPSK or 16QAM and a transmission frequency bandwidth determined by the number of resource blocks (“Table 6.2. Refer to “3-1”). Such MPR corresponds to the above-described “operation for reducing the maximum transmission power”.
  • A-MPR Additional MPR
  • the A-MPR corresponding to “Network Signaling value: NS_05” can be used to reduce the cost and size of the user equipment and The power of the spurious radiation is suppressed to below the specified value.
  • Network Signaling value is notified from the base station apparatus to the user apparatus by broadcast information or a handover command.
  • Such “Network Signaling value” is defined as an information element “additional Spectrum Emission” in Non-Patent Document 4.
  • the situation of the frequency band from 1884.5 MHz to 1980 MHz in Japan as shown in FIG. 15 is different from the situation in regions other than Japan, for example, North America and Europe, so A corresponding to the above “Network Signaling value”.
  • -MPR enabled proper operation according to local conditions.
  • the user apparatus can perform communication using such a frequency band in such a specific region, and as a result, the A-MPR can be appropriately applied. Is possible.
  • Network Signaling value has a problem that it becomes a redundant information element in the frequency band defined for the specific area described above.
  • the present invention has been made in view of the above-described problems, and based on a control signal designating a frequency band used in a mobile communication system, it is possible to flexibly reduce the amount of interference with an adjacent system frequency band. It is an object of the present invention to provide a user apparatus and a mobile communication method that can be performed in a simple manner.
  • a first feature of the present invention is a user apparatus that wirelessly communicates with a base station apparatus in a mobile communication system, and a receiving unit configured to receive a control signal designating a frequency band in the downlink, A maximum transmission power control unit configured to control a maximum transmission power in a predetermined channel of the uplink, the maximum transmission power control unit according to the frequency band specified by the control signal
  • the gist of the present invention is to determine whether or not the maximum transmission power in the predetermined channel is smaller than the rated power defined in the mobile communication system.
  • a second feature of the present invention is a mobile communication method for performing wireless communication between a base station apparatus and a user apparatus in a mobile communication system, wherein the user apparatus specifies a frequency band in the downlink.
  • Receiving step A and the user apparatus has a step B for controlling the maximum transmission power in a predetermined uplink channel.
  • step B the user apparatus is designated by the control signal. The gist is to determine whether or not the maximum transmission power in the predetermined channel is made smaller than the rated power defined in the mobile communication system according to the frequency band.
  • a user who can flexibly reduce the amount of interference with an adjacent system frequency band based on a control signal designating a frequency band used in a mobile communication system.
  • An apparatus and a mobile communication method can be provided.
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of the base station apparatus according to the first embodiment of the present invention.
  • FIG. 3 is a functional block diagram of the mobile station according to the first embodiment of the present invention.
  • FIG. 4 is a functional block diagram of the baseband signal processing unit of the mobile station according to the first embodiment of the present invention.
  • FIG. 5 is a diagram illustrating an example of a frequency band used in the mobile communication system according to the first embodiment of the present invention.
  • FIG. 6 is a diagram illustrating an example of an A-MPR table used in the mobile communication system according to the first embodiment of the present invention.
  • FIG. 12 is a diagram illustrating an example of equations used when the mobile station according to the first embodiment of the present invention determines the transmission power in the SRS channel.
  • FIG. 13 is a diagram illustrating an example of equations used when the mobile station according to the first embodiment of the present invention determines the transmission power in the PRACH.
  • FIG. 14 is a flowchart showing an operation of the mobile station according to the first embodiment of the present invention.
  • FIG. 15 is a diagram for explaining a usage situation of a frequency band in Japan.
  • a mobile communication system having a user apparatus and a base station apparatus according to this embodiment will be described with reference to FIG.
  • the mobile communication system 1000 is a system to which, for example, the “Evolved UTRA and UTRAN (also known as Long Term Evolution or Super 3G)” system is applied.
  • Evolved UTRA and UTRAN also known as Long Term Evolution or Super 3G
  • the mobile communication system 1000 includes a base station apparatus (eNB: eNode B) 200 and a plurality of user apparatuses (UE: User Equipment) 100 n (100 1 , 100 2 , 100 3 ,..., Communicating with the base station apparatus 200.
  • eNB eNode B
  • UE User Equipment
  • 100 n and n are integers of n> 0).
  • each user apparatus (100 1 , 100 2 , 100 3 ,... 100 n ) has the same configuration, function, and state, the following description will be given as the user apparatus 100 n unless otherwise specified.
  • a device that wirelessly communicates with a base station device is a user device.
  • the user device according to the present invention includes both a mobile terminal and a fixed terminal.
  • the OFDMA method is a multicarrier transmission method in which a frequency band is divided into a plurality of narrow frequency bands (subcarriers) and data is mapped to each subcarrier for communication.
  • the SC-FDMA scheme is a single carrier transmission scheme that reduces the interference between user apparatuses by dividing the frequency band for each terminal and using a plurality of different user apparatus frequency bands.
  • a “physical downlink shared channel (PDSCH)” and a “physical downlink control channel (PDCCH)” shared by each user apparatus 100 n are used.
  • PDSCH Physical Downlink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • BCCH Broadcast Control Channel
  • BCCH Broadcast Channel
  • P-BCH Physical Broadcast Channel
  • the broadcast channel transmitted by BCCH / DL-SCH / PDSCH may be referred to as a dynamic broadcast channel (D-BCH).
  • D-BCH dynamic broadcast channel
  • a control signal designating a frequency band is notified as an information element transmitted by BCCH.
  • a control signal specifying such a frequency band that is, a “frequency band indicator (frequency band indicator)” is notified as a part of information element of “SIB: System Information Block Type 1” which is one of the BCCH signals. Good.
  • Such “frequencyBandIndicator” may be referred to as “frequeBandIndicator”.
  • the “frequencyBandIndicator” may specifically be the index “E-UTRA Band” in the leftmost column of the table shown in FIG.
  • the table shown in FIG. 5 is defined in Non-Patent Document 3 described above.
  • the RRC message may be reported to the user apparatus 100 n from the base station apparatus 200.
  • the RRC message may be, for example, “Handover Command” which is an RRC message instructing Handover.
  • the RRC message is a DCCH (Dedicated Control Channel) as a logical channel.
  • the frequency band indicator described above, the communication starting RRC message may be reported to the user apparatus 100 n from the base station apparatus 200.
  • the user apparatus 100 n can know which frequency band is used in the corresponding cell by receiving a control signal designating a frequency band included in the BCCH, that is, “frequencyBandIndicator”.
  • the control signal designating the frequency band as part of the information element of a system-in-formation block other than SIB1 described above, may be reported to the user apparatus 100 n.
  • PUSCH and PDCCH that are shared and used by each user apparatus 100 n are used.
  • User data that is, a normal data signal is transmitted by the PUSCH.
  • downlink quality information (CQI: Channel Quality Indicator) for use in PDSCH scheduling processing, adaptive modulation / demodulation and coding processing (AMCS: Adaptive Modulation and Coding Scheme), and PDSCH delivery confirmation information (by PUCCH) Acknowledgment Information) is transmitted.
  • CQI Channel Quality Indicator
  • AMCS adaptive modulation / demodulation and coding processing
  • PDSCH delivery confirmation information (by PUCCH) Acknowledgment Information) is transmitted.
  • the content of the delivery confirmation information is either an acknowledgment (ACK: Acknowledgment) indicating that the transmission signal has been properly received or a negative acknowledgment (NACK: Negative Acknowledgment) indicating that the transmission signal has not been properly received. It is expressed by
  • the CQI or the delivery confirmation information described above may be multiplexed and transmitted on the PUSCH.
  • the base station apparatus 200 includes a transmission / reception antenna 202, an amplifier unit 204, a transmission / reception unit 206, a baseband signal processing unit 208, a call processing unit 210, and a transmission path interface 212.
  • User data transmitted from the base station apparatus 200 to the user apparatus 100 n via the downlink is processed by baseband signal processing from the upper station located above the base station apparatus 200, for example, the access gateway apparatus 300 via the transmission path interface 212. Input to the unit 208.
  • the baseband signal processing unit 208 performs PDCP layer transmission processing, RLC layer transmission processing such as division / combination processing and RLC (radio link control) retransmission control processing, and MAC (Medium Access Control).
  • RLC layer transmission processing such as division / combination processing and RLC (radio link control) retransmission control processing
  • MAC Medium Access Control
  • Retransmission control processing for example, HARQ (Hybrid Automatic Repeat reQuest) transmission processing, scheduling processing, transmission format selection processing, channel encoding processing, inverse fast Fourier transform (IFFT: Inverse Fast Fourier Transform) processing, etc. And transferred to the transmitting / receiving unit 206.
  • HARQ Hybrid Automatic Repeat reQuest
  • transmission processing such as channel coding processing and inverse fast Fourier transform processing is performed and transferred to the transmission / reception unit 206.
  • the PDCCH signal that is the downlink control channel is also subjected to transmission processing such as channel coding processing and inverse fast Fourier transform processing, and transferred to the transmission / reception unit 206.
  • the baseband signal processing unit 208 generates a BCCH signal that is broadcast information, performs transmission processing such as channel coding processing and inverse fast Fourier transform processing, and transfers the BCCH signal to the transmission / reception unit 206.
  • the BCCH signal is mapped to the BCH as a transport channel and mapped to the P-BCH as a physical channel, and the transport channel is mapped to the DL-SCH as a physical channel, as described above. Some are mapped to PDSCH.
  • the baseband signal output from the baseband signal processing unit 208 is subjected to frequency conversion processing to be converted into a radio frequency signal by the transmission / reception unit 206, and then amplified by the amplifier unit 204 and transmitted from the transmission / reception antenna 202.
  • a radio frequency signal received by the transmission / reception antenna 202 is amplified by the amplifier unit 204, and frequency-converted by the transmission / reception unit 206. It is converted into a band signal and input to the baseband signal processing unit 208.
  • the baseband signal processing unit 208 performs FFT processing, IDFT processing, error correction decoding processing, MAC retransmission control reception processing, RLC layer reception processing on user data included in the input baseband signal.
  • PDCP layer reception processing and the like are performed and transferred to the access gateway apparatus 300 via the transmission path interface 212.
  • the call processing unit 210 performs call processing such as communication channel setting and release, state management of the radio base station 200, and radio resource management.
  • the user apparatus 100 n includes a transmission / reception antenna 102, an amplifier unit 104, a transmission / reception unit 106, a baseband signal processing unit 108, and an application unit 110.
  • the baseband signal is subjected to FFT processing, error correction decoding processing, retransmission control reception processing, and the like by the baseband signal processing unit 108.
  • downlink user data is transferred to the application unit 110, and the application unit 110 performs processing related to a layer higher than the physical layer and the MAC layer. Also, broadcast information in such downlink data is also transferred to the application unit 110.
  • control signal designating a frequency band When a control signal designating a frequency band is received as part of the BCCH signal that is broadcast information, the control signal designating the frequency band is transmitted via the application unit 110 to the maximum transmission power described later. Transferred to the control unit 1083. Note that the control signal designating such a frequency band may be transferred to the maximum transmission power control unit 1083 without passing through the application unit 110.
  • control signal designating such a frequency band may be, for example, “frequencyBandIndicator” that is a part of the information element of “SIB1” that is one of the BCCH signals as described above.
  • control signal designating a frequency band When a control signal designating a frequency band is received as part of the RRC message, the control signal designating the frequency band is sent to the maximum transmission power control unit 1083 described later via the application unit 110. Transferred. Note that the control signal designating such a frequency band may be transferred to the maximum transmission power control unit 1083 without passing through the application unit 110.
  • uplink user data is input from the application unit 110 to the baseband signal processing unit 108, and the baseband signal processing unit 108 performs retransmission control transmission processing, channel coding processing, DFT processing, IFFT processing, and the like. Processing and the like are performed and transferred to the transmission / reception unit 106.
  • the baseband signal output from the baseband signal processing unit 108 is then subjected to frequency conversion processing for conversion into a radio frequency band by the transmission / reception unit 106, and then amplified by the amplifier unit 104 and transmitted from the transmission / reception antenna 102. .
  • Such uplink user data is mapped to PUSCH, which is a physical channel. That is, the PUSCH to which the uplink user data is mapped is transmitted to the base station apparatus 200 via the baseband signal processing unit 108, the transmission / reception unit 106, the amplifier unit 104, and the transmission / reception antenna 102 as described above. .
  • a PUCCH signal, an SRS (Sounding Reference Signal), and a physical random access channel (PRACH) signal are also transmitted as described above.
  • the transmission / reception unit 106, the amplifier unit 104, and the transmission / reception antenna 102 may be transmitted to the base station apparatus 200.
  • the configuration of the baseband signal processing unit 108 will be described with reference to FIG.
  • the baseband signal processing unit 108 includes a layer 1 processing unit 1081, a MAC (Medium Access Control) processing unit 1082, and a maximum transmission power control unit 1083.
  • the layer 1 processing unit 1081, the MAC (Medium Access Control) processing unit 1082, and the maximum transmission power control unit 1083 are connected to each other.
  • the maximum transmission power control unit 1083 is also connected to the application unit 110.
  • the layer 1 processing unit 1081 is configured to perform FFT processing, channel decoding processing, and the like on a signal received on the downlink.
  • the layer 1 processing unit 1081 is configured to perform demodulation / decoding processing of broadcast information included in a signal received on the downlink, and transmit the decoding result to the MAC processing unit 1082 and the maximum transmission power control unit 1083. Yes.
  • the layer 1 processing unit 1081 is configured to transmit, to the maximum transmission power control unit 1083, a control signal that designates a frequency band included in broadcast information that is a decoding result of the broadcast channel.
  • control signal designating such a frequency band may be transmitted to the application unit 110 and then transmitted to the maximum transmission power control unit 1083.
  • broadcast information that is, broadcast information including a control signal designating a frequency band is mapped to BCCH as a logical channel, for example.
  • BCCH is mapped to BCH as a transport channel, mapped to P-BCH as a physical channel, mapped to DL-SCH as a transport channel, and mapped to PDSCH as a physical channel as described above. There is something.
  • the layer 1 processing unit 1081 receives information on the maximum transmission power from the maximum transmission power control unit 1083, and uses the information on the maximum transmission power to use the uplink PUSCH, PUCCH, SRS (Sounding Reference Signal, sounding reference). Signal) and physical random access channel (PRACH: Physical Random Access Channel).
  • the transmission power control in the layer 1 processing unit 1081 will be described in more detail.
  • the layer 1 processing unit 1081 receives user data from the MAC processing unit 1082 when transmitting user data (mapped to PUSCH as a physical channel) in the uplink of the subframe.
  • the layer 1 processing unit 1081 performs encoding processing, data modulation processing, DFT processing, subcarrier mapping processing, IFFT processing, and the like on the received user data, and transmits the result to the transmission / reception unit 106 as a baseband signal. It is configured as follows.
  • the transmission power in the uplink shared channel may be determined as follows, for example.
  • the layer 1 processing unit 1081 the maximum transmission power P max , the PUSCH resource block number M PUSCH (i) in the subframe i, the parameter P O_PUSCH (i), the parameter ⁇ , and the radio that is the connection destination of the PUSCH It relates to a propagation loss (Pathloss) PL between the base station 200 and the user apparatus 100 n , an offset value ⁇ TF according to “Modulation and Coding Scheme (MCS)”, and a subframe i received from the radio base station 200. Based on the transmission power control information f (i), the transmission power P PUSCH (i) in the PUSCH is determined.
  • Pathloss propagation loss
  • MCS Modulation and Coding Scheme
  • the layer 1 processing unit 1081 is configured to determine the transmission power P PUSCH (i) in PUSCH according to the equation shown in FIG.
  • the layer 1 processing unit 1081 is configured to control the transmission power P PUSCH (i) in the PUSCH based on the information regarding the maximum transmission power received from the maximum transmission power control unit 1083 according to the formula shown in FIG. Has been.
  • the layer 1 processing unit 1081 sets the transmission power P PUSCH (i) in PUSCH so as to be equal to or lower than the maximum transmission power P max set by the above-described information on the maximum transmission power, using the equation shown in FIG. .
  • the layer 1 processing unit 1081 determines that the transmission power P PUSCH (i) in the PUSCH determined by the equation shown in FIG. 10 is set to the maximum transmission power P max set by the information on the maximum transmission power described above. Is larger than the transmission power P PUSCH (i) in the PUSCH , the same value as the maximum transmission power P max set by the information on the maximum transmission power described above is set.
  • the maximum transmission power P max notified from the maximum transmission power control unit 1083 is, for example, a control signal (frequency indicator) for specifying a frequency band included in broadcast information or a frequency resource used in PUSCH.
  • the amount may be set based on the amount (specifically, the number of resource blocks or the size of resource units), the modulation scheme, or the position of the frequency band.
  • DM RS Demodulation Reference Signal
  • the layer 1 processing unit 1081 transmits such a control signal (for example, CQI) when transmitting a control signal (mapped to PUCCH as a physical channel) such as acknowledgment information for CQI and PUSCH in each uplink subframe.
  • a control signal for example, CQI
  • transmission confirmation information are configured to perform encoding processing, data modulation processing, DFT processing, subcarrier mapping processing, IFFT processing, and the like, and to transmit the result to the transmission / reception unit 106 as a baseband signal.
  • the layer 1 processing unit 1081 includes the maximum transmission power P max , the parameter P O_PUCCH (i), the propagation loss PL between the radio base station 200 to which the PUCCH is connected and the user apparatus 100 n , and the PUCCH
  • the transmission power P PUCCH (i) in the PUCCH is determined based on the offset value ⁇ TF corresponding to the transmission format of and the transmission power control information g (i) related to the subframe i received from the radio base station 200. It is configured.
  • the layer 1 processing unit 1081 is configured to determine the transmission power P PUCCH (i) in the PUCCH by the equation shown in FIG.
  • the layer 1 processing unit 1081 is configured to control the transmission power P PUCCH (i) in the PUCCH based on the information regarding the maximum transmission power received from the maximum transmission power control unit 1083 according to the equation shown in FIG. Has been.
  • the layer 1 processing unit 1081 sets the transmission power P PUCCH (i) in the PUCCH to be equal to or less than the maximum transmission power value P max set by the above-described information on the maximum transmission power, using the equation shown in FIG. To do.
  • the transmission power P PUCCH in the determined PUCCH (i) is the maximum transmission power P max which is set using information on the maximum transmit power of the above Is larger than the transmission power P PUCCH (i) in the PUCCH, it is set to the same value as the maximum transmission power P max set by the information on the maximum transmission power described above.
  • the maximum transmission power P max notified from the maximum transmission power control unit 1083 is, for example, a control signal (frequency indicator) that specifies a frequency band included in broadcast information or a frequency resource used in the PUCCH.
  • the amount may be set based on the amount (specifically, the number of resource blocks or the size of resource units), the modulation scheme, or the position of the frequency band.
  • the layer 1 processing unit 1081 when transmitting an SRS in each uplink subframe, performs an encoding process, a data modulation process, a DFT process, a subcarrier mapping process, an IFFT process, and the like for the SRS. The result is transmitted to the transmission / reception unit 106 as a baseband signal.
  • the layer 1 processing unit 1081 determines the maximum transmission power P max , the power offset P SRS_OFFSET between the uplink SRS channel and the PUSCH, the number of resource blocks M SRS used in the uplink SRS channel, and the parameter P 0_PUSCH. , Parameter ⁇ , propagation loss PL between radio base station 200 to which the uplink SRS channel is connected and user apparatus 100 n, and transmission power control information f related to subframe i received from radio base station 200 Based on (i), the transmission power P SRS (i) in the uplink SRS channel is determined.
  • the layer 1 processing unit 1081 is configured to determine the transmission power P SRS (i) in the uplink SRS channel using the equation shown in FIG.
  • the layer 1 processing unit 1081 controls the transmission power P SRS (i) in the uplink SRS channel based on the information regarding the maximum transmission power received from the maximum transmission power control unit 1083, using the equation shown in FIG. It is configured as follows.
  • the layer 1 processing unit 1081 makes the transmission power P SRS (i) in the uplink SRS channel equal to or less than the maximum transmission power value P max set by the above-described information on the maximum transmission power, using the equation shown in FIG. Set as follows.
  • the layer 1 processing unit 1081 uses the equation shown in FIG. 12 to determine the maximum transmission power P SRS (i) determined in the uplink SRS channel is set based on the information on the maximum transmission power described above. When it is larger than the power P max, the transmission power P SRS (i) in the uplink SRS channel is set to the same value as the maximum transmission power P max set by the information on the maximum transmission power described above.
  • the maximum transmission power P max notified from the maximum transmission power control unit 1083 is used, for example, in a control signal (frequency indicator) for specifying a frequency band included in broadcast information or an uplink SRS channel.
  • the frequency resource may be set based on the amount of frequency resources (specifically, the number of resource blocks or the size of resource units), the modulation scheme, and the position of the frequency band.
  • the layer 1 processing unit 1081 when transmitting a PRACH signal (random access preamble) in each uplink subframe, the layer 1 processing unit 1081 performs coding processing, data modulation processing, DFT processing, and subcarrier mapping processing on the PRACH signal. And IFFT processing, etc., and the result is transmitted to the transmission / reception unit as a baseband signal.
  • the layer 1 processing unit 1081 includes the maximum transmission power P max , the power offset ⁇ _preamble corresponding to the preamble format, and the propagation loss PL between the radio base station 200 to which the PRACH is connected and the user apparatus 100 n. , Based on the parameter P 0_pre , the power ramping offset dP_rampup, and the preamble transmission count N_pre, the transmission power Pprch in the PRACH is determined.
  • the layer 1 processing unit 1081 is configured to determine the transmission power P patch in the PRACH according to the formula shown in FIG.
  • the layer 1 processing unit 1081 is configured to control the transmission power P patch in the PRACH based on the information regarding the maximum transmission power received from the maximum transmission power control unit 1083 by the equation shown in FIG. .
  • the layer 1 processing unit 1081 sets the transmission power Ppatch in the PRACH to be equal to or less than the maximum transmission power value Pmax set by the above-described information on the maximum transmission power, using the equation shown in FIG.
  • the maximum transmission power P max notified from the maximum transmission power control unit 1083 is, for example, a control signal (frequency indicator) that specifies a frequency band included in broadcast information or a frequency resource used in the PRACH.
  • the amount may be set based on the amount (specifically, the number of resource blocks or the size of resource units), the modulation scheme, or the position of the frequency band.
  • the position of the frequency band may be the position of a frequency resource, that is, the position of a resource block or resource unit.
  • the transmission power calculation method (the expressions shown in FIGS. 10 to 13) in the predetermined uplink channel such as PUSCH, PUCCH, uplink SRS, and PRACH in the layer 1 processing unit 1081 described above is an example.
  • transmission power in a predetermined uplink channel such as PUSCH, PUCCH, uplink SRS, and PRACH may be determined.
  • the transmission power in a predetermined uplink channel such as PUSCH, PUCCH, uplink SRS, and PRACH is the maximum set by the information on the maximum transmission power described above. It is set to be equal to or less than the transmission power value Pmax .
  • the layer 1 processing unit 1081 is configured to perform demodulation / decoding processing of the PDCCH that is a downlink control channel included in the downlink received signal, and transmit the decoding result to the MAC processing unit 1082.
  • the layer 1 processing unit 1081 is configured to measure the received signal quality of a downlink reference signal (DL-RS: Donlink Reference Signal).
  • DL-RS Downlink Reference Signal
  • the received signal quality may be expressed, for example, as a ratio of desired signal power to undesired signal power, or may be expressed as SIR (Signal-to-Interference Ratio).
  • the numerical value range expressing the SIR may be divided into a predetermined number, and the CQI may be derived according to which area the SIR measurement value belongs to.
  • the CQI is prepared according to a predetermined reporting period, and the CQI is transmitted in a subframe corresponding to the period.
  • the layer 1 processing unit 1081 receives the delivery confirmation information from the delivery confirmation information generation unit 1084 when transmitting the delivery confirmation information in the subframe, and transmits the user data in the subframe. User data is received from the processing unit 1082.
  • the MAC processing unit 1082 performs transmission processing such as determination of uplink user data transmission format and retransmission control in the MAC layer based on the decoding result of the uplink scheduling grant included in the PDCCH received from the layer 1 processing unit 1081. It is configured as follows.
  • the MAC processing unit 1082 transmits the user data to be transmitted when the communication using the shared channel in the uplink is permitted in the physical downlink control channel received from the layer 1 processing unit 1081. Transmission processing such as format determination and retransmission control is performed, and the user data is given to the layer 1 processing unit 1081.
  • the uplink scheduling grant may include information related to the transmission power of the uplink shared channel.
  • information regarding the transmission power of the uplink shared channel is also provided to the layer 1 processing unit 1081.
  • the MAC processing unit 1082 is configured to notify the maximum transmission power control unit 1083 of information regarding the amount of frequency resources, the modulation scheme, and the position of the frequency resources used in the subframe included in the uplink scheduling grant. Has been.
  • the MAC processing unit 1082 is configured to perform reception processing of MAC retransmission control of downlink user data based on the PDCCH decoding result received from the layer 1 processing unit 1081.
  • the MAC processing unit 1082 when notified that the communication using the shared channel is performed in the downlink, the MAC processing unit 1082 performs decoding on the received user data, and determines whether the user data signal is incorrect. A CRC check is performed.
  • the MAC processing unit 1082 is configured to generate delivery confirmation information based on the CRC check result and notify the layer 1 processing unit 1081.
  • the MAC processing unit 1082 When the CRC check result is OK, the MAC processing unit 1082 generates an acknowledgment signal ACK as the delivery confirmation information. When the CRC check result is NG, the MAC processing unit 1082 generates the negative response signal NACK as the delivery confirmation information. Configured to generate.
  • the maximum transmission power control unit 1083 is configured to receive from the layer 1 processing unit 1081 a control signal (frequency indicator) that specifies a frequency band included in the broadcast information.
  • the maximum transmission power control unit 1083 is configured to receive, from the MAC processing unit 1082, information on the amount of frequency resources, the modulation scheme, and the position of the frequency resources used when uplink transmission is performed in the subframe. Yes.
  • the maximum transmission power control unit 1083 defines the maximum transmission power in a predetermined channel (PUCCH, PUSCH, uplink SRS channel, or PRACH) in the mobile communication system based on the frequency band specified by the received control signal. It is configured to determine whether or not to make it smaller than the rated power.
  • a predetermined channel PUCCH, PUSCH, uplink SRS channel, or PRACH
  • the amount of frequency resources used in the predetermined channel (specifically, the number of resource blocks and resource units) And the maximum transmission power may be determined based on at least one of a modulation scheme and a modulation scheme.
  • E-UTRA Band 1 is an international frequency band
  • Network Signaling is required
  • E-UTRA Band 18 is a frequency band used only in Japan. Yes, “Network Signaling” is not required (“frequencyBandIndicator” is sufficient).
  • the maximum transmission power in the predetermined channel may be configured to be smaller than the above-described rated power by the first value (A-MPR (dB)).
  • the number of resource blocks described above is a value corresponding to the amount of frequency resources described above, and may be a frequency bandwidth.
  • the size of the resource unit may be used instead of the number of resource blocks described above.
  • the maximum transmission power in the predetermined channel is set to “23 dBm”
  • the value of A-MPR is “2 dB”, so that the maximum transmission power in a predetermined channel is “21 dBm”. It may be set.
  • the value of A-MPR is determined based on the number of resource blocks and the modulation scheme in FIG. 6B, but instead, the number of resource blocks and the modulation scheme are determined. Based on at least one, the value of A-MPR may be determined.
  • the number of resource blocks is a value corresponding to the amount of the frequency resource described above, and may be a frequency bandwidth.
  • the size of the resource unit may be used instead of the number of resource blocks described above.
  • Channel Bandwidth corresponds to the bandwidth of the entire system.
  • “Modulation scheme” “QPSK”
  • the value of A-MPR is “0 dB”
  • the maximum transmission power in a predetermined channel is set to “23 dBm”
  • the above control signal is “E-UTRA”
  • the system bandwidth 15 MHz
  • “number of resource blocks” “30”
  • “modulation scheme” “16QAM”
  • the value of A-MPR is 3 dB. Therefore, the maximum transmission power in the predetermined channel may be set to “20 dBm”.
  • the value of A-MPR is determined based on the system bandwidth, the number of resource blocks, and the modulation scheme.
  • the value of A-MPR may be determined based on at least one of the number and the modulation scheme.
  • the above-described frequency position is a value corresponding to the position of the frequency resource used when uplink transmission is performed, and may be the position of a resource block or the position of a resource unit.
  • the position of the resource block described above may be determined by the number of the resource block, the center frequency of the resource block, the center frequency of the frequency resource, or may be determined by the number of the resource block having the lowest frequency. .
  • the center frequency of the resource block may be a center frequency of a resource block group including the plurality of resource blocks.
  • a value other than the resource block number and the center frequency may be used as information regarding the position of the frequency resource.
  • the maximum transmission power in the predetermined channel may be set to “19 dBm”.
  • the value of A-MPR is determined based on the system bandwidth, the position of the frequency resource, the number of resource blocks, and the modulation scheme in FIG.
  • the value of A-MPR may be determined based on at least one of the width, the location of frequency resources, the number of resource blocks, and the modulation scheme.
  • the amount of frequency resources is “20 Resource Blocks (RBs)”
  • the MPR value is “2 dB”. It may be set to “21 dBm”.
  • “1 Resource Block” may be “180 kHz”.
  • the maximum transmission power control unit 1083 refers to the tables shown in FIGS. 6 to 9, and the first value (A-MPR (dB)),
  • the maximum transmission power in the predetermined channel is smaller than the above-mentioned rated power by the second value (MPR (dB)) corresponding to the combination of the modulation scheme used in the predetermined channel and the number of resource blocks (resource block amount). It may be configured to.
  • the final reduction amount of the maximum transmission power may be determined by adding MPR and A-MPR.
  • the MPR value second value
  • the A-MPR first value
  • the maximum transmission power in the predetermined channel may be set to “20 dBm” (see FIG. 6A and FIG. 9).
  • the maximum transmission power in a predetermined channel may be configured to be smaller than the above-described rated power by only binary values (MPR (dB)) (see FIGS. 6B and 9).
  • the value of A-MPR is determined based on the number of resource blocks and the modulation scheme in FIG. 6B, but instead, the number of resource blocks and the modulation scheme are determined. Based on at least one, the value of A-MPR may be determined.
  • the maximum transmission power in the predetermined channel may be configured to be smaller than the above-described rated power by the second value (MPR (dB)) corresponding to the combination with (quantity) (see FIGS. 7 and 9). ).
  • the amount of frequency resources is “40 Resource Blocks (RBs)”
  • the MPR value is “2 dB”
  • the A-MPR first value
  • the maximum transmission power in the predetermined channel may be set to “18 dBm” (see FIGS. 7 and 9).
  • the value of A-MPR is determined based on the number of resource blocks, the modulation scheme, and the system bandwidth. Instead, the number of resource blocks and the modulation scheme are used. And the value of A-MPR may be determined based on at least one of the system bandwidth.
  • the maximum transmission power in the predetermined channel may be configured to be smaller than the above-described rated power by the second value (MPR (dB)) corresponding to the combination with the number of blocks (resource block amount) (see FIG. 8 and FIG. 9).
  • the value of A-MPR is determined based on the number of resource blocks, the modulation scheme, the system bandwidth, and the position of the frequency resource.
  • the value of the A-MPR may be determined based on at least one of the number of signals, the modulation scheme, the system bandwidth, and the location of the frequency resource.
  • the amount of frequency resources and the modulation scheme used in the PUSCH subframe are included in the uplink scheduling grant mapped to the PDCCH, and the maximum transmission power control unit 1083 receives the information from the MAC processing unit 1082. Configured to receive.
  • the performance specification of the predetermined spurious radiation described above is, for example, “Spurious emission (“ ⁇ 41 dBm / 300 kHz ”in the frequency band 1884.5 to 199.6 MHz”) to the PHS band, or the frequency band 860. -"Spurious emission (" -37 dBm / MHz ”) at 874 MHz. Note that the above-described performance definition of spurious radiation is defined by the absolute value of interference power in a predetermined frequency band.
  • the user apparatus 100 n can only satisfy the above-described predetermined spurious radiation performance specification (or performance specification related to spectrum mask and performance specification related to adjacent channel interference (ACLR)).
  • the processing of setting the maximum transmission power to be small may be performed based on the amount of reduction from the rated power in FIGS.
  • the performance specification related to the spectrum mask and the performance specification related to adjacent channel interference are related to the ratio of interference power in a predetermined frequency band adjacent to or close to the transmission power in the frequency band of the own system. .
  • the performance specification related to the spectrum mask and the performance specification related to adjacent channel interference are specified by the relative values described above.
  • the “reduction amount from the rated power” is “a value at which the maximum transmission power may be reduced”, and the user apparatus 100 n can perform the above-described performance specification of the predetermined spurious radiation (or If the performance specification regarding the spectrum mask and the performance specification regarding adjacent channel interference) can be satisfied, the maximum transmission power in the predetermined channel is not reduced, or the reduction amount is determined from “rated power” in FIGS. The process of making it smaller than the “reduction amount” may be performed.
  • the maximum transmission power control unit 1083 determines the maximum transmission power based on at least one of a control signal designating a frequency band, an amount of frequency resources, a modulation scheme, and a center frequency of frequency resources.
  • the maximum transmission power may be determined based on a control signal specifying a frequency band and other metrics.
  • the maximum transmission power control unit 1083 may determine the maximum transmission power based on a control signal designating a frequency band and “Cubic metric”.
  • Cubic metric is one of the metrics for estimating the interference power to the adjacent channel.
  • E-UTRA Band 18 may be a frequency band defined only for a specific area. More specifically, “E-UTRA Band 18” may be a frequency band operated only in Japan.
  • step S101: NO the user apparatus 100 n determines that “A-MPR (maximum transmission power based on FIGS. This operation is terminated without performing the “reduction processing)”.
  • the user apparatus 100 n may perform “MPR (reduction processing of maximum transmission power based on FIG. 9)” for a predetermined channel.
  • step S101 when it is determined that the “frequency indicator” designates the predetermined frequency band (step S101: YES), the user apparatus 100 n performs “A-MPR (maximum transmission based on FIGS. 6 to 8) for the predetermined channel”. Power reduction process).
  • the user apparatus 100 n further performs “MPR (maximum transmission power reduction process based on FIG. 9)” on a predetermined channel when performing the maximum transmission power reduction process based on FIGS. 6 to 8. Also good.
  • MPR maximum transmission power reduction process based on FIG. 9
  • step S101 When it is determined that the “frequency indicator” designates a predetermined frequency band (step S101: YES), the user apparatus 100 n always performs “A-MPR (FIGS. 6 to 8) for the predetermined channel.
  • A-MPR FIGS. 6 to 8
  • step S101: YES when it is determined that the “frequency indicator” designates a predetermined frequency band (step S101: YES), the user apparatus 100 n always performs the predetermined channel regardless of the above “Network Signaling value”. “A-MPR (maximum transmission power reduction processing based on FIGS. 6 to 8)” may be performed.
  • N — 01 in “Network Signaling value” means that A-MPR is not applied. That is, when it is determined that the “frequency indicator” designates a predetermined frequency band (step S101: YES), the user apparatus 100 n has “Network Signaling value” indicating that A-MPR is not applied. Even if notified, always or when other conditions are satisfied, “A-MPR (maximum transmission power reduction processing based on FIGS. 6 to 8)” for a predetermined channel may be performed. Good.
  • the user apparatus 100 n determines that the “frequency indicator” designates the predetermined frequency band, and the value of the “Network Signaling value” is “NS — 01”, or If the value of “Network Signaling value” is not notified, “A-MPR (maximum transmission power reduction processing based on FIGS. 6 to 8)” is performed for a predetermined channel when other conditions are satisfied. May be.
  • the mobile communication system According to the mobile communication system according to the first embodiment of the present invention, without using the redundant information element “Network Signaling value”, the mobile communication system is appropriately adjacent according to the region and circumstances where the mobile communication system is applied. It is possible to reduce the amount of interference with the mobile communication system, and to provide a service using efficient mobile communication.
  • the first feature of the present embodiment is a user apparatus 100 n that performs radio communication with the base station apparatus 200 within the mobile communication system 1000, and receives a control signal (frequency indicator) that specifies a frequency band in the downlink.
  • a maximum transmission power control unit 1083 configured to control the maximum transmission power in a predetermined channel of the uplink, the maximum transmission power control unit 1083 depending on the frequency band specified by the control signal.
  • the gist of the present invention is to determine whether or not the maximum transmission power in the predetermined channel is smaller than the rated power defined in the mobile communication system.
  • the maximum transmission power control unit 1083 when the above-described control signal does not designate a predetermined frequency band, the maximum transmission power control unit 1083 does not make the maximum transmission power in the predetermined channel smaller than the above-described rated power.
  • the maximum transmission power control unit 1083 has a first frequency band corresponding to the frequency bandwidth (number of resource blocks) used in the predetermined channel.
  • the maximum transmission power in the predetermined channel may be configured to be smaller than the above-described rated power by the value (A-MPR (dB)).
  • the maximum transmission power control unit 1083 supports a combination of a modulation scheme and the number of resource blocks used in a predetermined channel.
  • the maximum transmission power in the predetermined channel is set to be smaller than the above rated power by the second value (MPR (dB)) to be performed, and the above control signal designates the predetermined frequency band
  • the maximum transmission power control unit includes only the first value (A-MPR (dB)) and the second value (MPR (dB)) corresponding to the combination of the modulation scheme used in the predetermined channel and the number of resource blocks.
  • the maximum transmission power in the predetermined channel may be configured to be smaller than the above-described rated power.
  • the maximum transmission power control unit 1083 corresponds to a combination of a modulation scheme and the number of resource blocks used in a predetermined channel.
  • the maximum transmission power in the predetermined channel is set to be smaller than the above-mentioned rated power by the second value (MPR (dB)) to be performed, and the above-mentioned control signal designates the predetermined frequency band
  • the maximum transmission power control unit 1083 uses a first value (A-MPR (A-MPR () corresponding to at least one of a frequency bandwidth (number of resource blocks), a modulation scheme, a frequency resource position, and a system bandwidth used in a predetermined channel).
  • the control signal includes the broadcast channel, the RRC message at the start of communication, the RRC message in handover (for example, “Handover Command” indicating Handover), or the NAS at the time of location registration. It may be configured to be transmitted using any of the messages.
  • the predetermined channel is an uplink shared channel, an uplink control channel, an uplink sounding reference signal, an uplink demodulation reference signal, or an uplink. Or at least one of the random access channels.
  • the maximum transmission power control unit 1083 determines that the amount of interference with a predetermined frequency band is equal to or less than a predetermined threshold.
  • the maximum transmission power in the predetermined channel may be configured to be smaller than the above-described rated power.
  • the above-mentioned “the amount of interference with a predetermined frequency band is equal to or less than a predetermined threshold” means “adjacent to a frequency band used in a predetermined channel with respect to transmission power in the predetermined channel.
  • the relative value of the interference power to the frequency band to be used may be equal to or less than the first threshold value ”.
  • the above-mentioned “the amount of interference with a predetermined frequency band is equal to or less than a predetermined threshold” means that the absolute value of the amount of interference with a predetermined frequency band is It may indicate that the value is equal to or less than the second threshold value.
  • the maximum transmission power in a predetermined channel may be set separately for each of a plurality of frequency bands.
  • the maximum transmission power in a predetermined channel may be set separately for each of a plurality of system bandwidths.
  • the maximum transmission power control unit 1083 determines the maximum transmission power in a predetermined channel according to whether or not the above-described frequency band is a frequency band used only in a predetermined region. In addition, it may be configured to determine whether or not to make it smaller than the rated power defined in the mobile communication system.
  • a second feature of the present embodiment is a mobile communication method for performing wireless communication between a base station apparatus and a user apparatus within a mobile communication system, wherein the user apparatus specifies a frequency band in the downlink.
  • the gist is to determine whether or not the maximum transmission power in the predetermined channel is made smaller than the rated power defined in the mobile communication system according to the frequency band.
  • the operations of the base station apparatus 200 and the user apparatus 100 n described above may be implemented by hardware, may be implemented by a software module executed by a processor, or may be implemented by a combination of both. Good.
  • Such a storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in the base station apparatus 200 and the mobile station 100 n . Further, the storage medium and the processor may be provided in the base station apparatus 200 and the user apparatus 100 n as discrete components.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un équipement utilisateur (100n) qui comprend une unité de commande de puissance de transmission maximale (1083) qui reçoit un signal de commande pour désigner une bande de fréquence dans une liaison descendante et qui commande la puissance de transmission maximale dans un canal prédéterminé d'une liaison montante. L'unité de commande de puissance de transmission maximale (1083) détermine, en fonction de la bande de fréquence désignée par le signal de commande, s'il est nécessaire de régler la puissance de transmission maximale dans le canal prédéterminé à une valeur inférieure à un taux de puissance spécifique dans un système de communication mobile.
PCT/JP2009/071603 2008-12-26 2009-12-25 Équipement utilisateur et procédé de communication mobile WO2010074235A1 (fr)

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JP2008-335052 2008-12-26
JP2008335052 2008-12-26
JP2009-255586 2009-11-06
JP2009255586A JP5227938B2 (ja) 2008-12-26 2009-11-06 ユーザ装置及び移動通信方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2688213A1 (fr) * 2011-03-16 2014-01-22 NEC CASIO Mobile Communications, Ltd. Dispositif d'émission sans fil, procédé de régulation de puissance et programme

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4106461B1 (fr) * 2008-03-19 2024-01-17 NEC Corporation Système de communication sans fil, procédé de paramétrage de communication sans fil, station de base, station mobile et programme
CN102197689B (zh) * 2008-08-27 2015-02-25 诺基亚通信公司 用于无线上行链路数据传输的多个功率控制参数组
KR101622224B1 (ko) * 2009-11-06 2016-05-18 엘지전자 주식회사 무선 통신 시스템에서 단말 송신 전력 제어 방법 및 이를 위한 장치
RU2510792C1 (ru) * 2010-02-12 2014-04-10 Фудзицу Лимитед Устройство радиосвязи, система радиосвязи и способ радиосвязи
PT2566058T (pt) 2010-04-30 2018-12-07 Sun Patent Trust Dispositivo de comunicação sem fios e método para controlar a potência de transmissão
CN102934382B (zh) * 2010-06-04 2016-08-10 Lg电子株式会社 控制探测参考信号发送的上行发送功率的方法和用户设备
JP5544252B2 (ja) * 2010-09-10 2014-07-09 Ｋｄｄｉ株式会社 送信電力制御装置、無線通信システム、及び送信電力制御方法
JP5553356B2 (ja) * 2011-01-11 2014-07-16 独立行政法人情報通信研究機構 管理装置、無線装置、周波数および送信電力の決定方法
KR101947555B1 (ko) 2011-06-15 2019-02-13 엘지전자 주식회사 무선 접속 시스템에서 신호 전송 방법 및 이를 위한 장치
US8737330B2 (en) 2011-06-24 2014-05-27 Motorola Mobility Llc Multi-cluster uplink transmission in wireless communication network
CN103959868B (zh) * 2011-11-12 2018-04-06 Lg电子株式会社 用于在无线通信系统中允许终端确定上行链路传输功率的方法及其装置
US9137801B2 (en) * 2012-01-17 2015-09-15 Nokia Technologies Oy Method and apparatus for determination of additional maximum power reduction table based on control channel location indices
US9414184B2 (en) * 2012-02-15 2016-08-09 Maxlinear Inc. Method and system for broadband near-field communication (BNC) utilizing full spectrum capture (FSC) supporting bridging across wall
US8868123B2 (en) 2012-07-16 2014-10-21 Motorola Mobility Llc Method and system for managing transmit power on a wireless communication network
JP2015228534A (ja) * 2012-09-25 2015-12-17 シャープ株式会社 端末装置、基地局装置、無線通信システム通信方法およびプログラム
MX340632B (es) * 2012-10-01 2016-07-19 Ericsson Telefon Ab L M Modificaciones de edicion independiente de parametros de red.
US9220070B2 (en) 2012-11-05 2015-12-22 Google Technology Holdings LLC Method and system for managing transmit power on a wireless communication network
WO2014092365A1 (fr) 2012-12-11 2014-06-19 엘지전자 주식회사 Procédé permettant d'émettre et de recevoir un signal dans un système de communication sans fil et appareil associé
KR101449373B1 (ko) * 2013-03-26 2014-10-08 엘지전자 주식회사 스퓨리어스 방사를 최소화하기 위한 상향링크 전송 방법 및 사용자 장치
JP2014192681A (ja) * 2013-03-27 2014-10-06 Kyocera Corp 通信装置、通信方法、及び通信システム
EP3000260B1 (fr) * 2013-05-20 2021-02-24 Nokia Technologies Oy Procédé et appareil mettant en oeuvre de multiples valeurs de signalisation de réseau
CN104769988B (zh) * 2013-08-07 2021-07-16 华为技术有限公司 信息发送、接收方法及设备
US9185667B2 (en) * 2013-09-26 2015-11-10 Qualcomm Incorporated IBE aware channel selection
US9326251B2 (en) * 2013-09-30 2016-04-26 Qualcomm, Incorporated Supplemental maximum power reduction for operation in restricted configurations
US9484986B2 (en) 2013-11-09 2016-11-01 Maxlinear, Inc. Method and system for broadband near-field communication
JP6007226B2 (ja) * 2014-10-22 2016-10-12 アンリツ株式会社 移動体端末試験装置および試験方法
EP3955656B1 (fr) 2015-03-06 2023-07-19 Sony Group Corporation Dispositif de commande de communication et procédé de commande de communication
DE102015215177B3 (de) * 2015-08-07 2016-11-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Steuerung der Sendeleistung
WO2017034189A1 (fr) * 2015-08-24 2017-03-02 엘지전자 주식회사 Procédé de transmission de signal de liaison montante et équipement utilisateur capable de protéger une bande voisine par rapport à une bande de service mobile par satellite
CN107889241B (zh) * 2016-09-30 2020-03-06 电信科学技术研究院 一种终端能力协商方法、终端及基站
JP6408664B2 (ja) * 2017-08-10 2018-10-17 京セラ株式会社 通信装置、通信方法、及び通信システム
JP6446157B1 (ja) * 2018-09-20 2018-12-26 京セラ株式会社 通信装置、通信方法、及び通信システム
CN113873630B (zh) * 2020-06-30 2023-07-11 华为技术有限公司 一种上行功率控制方法及终端
US11622355B2 (en) * 2021-03-29 2023-04-04 Cisco Technology, Inc. Wireless fidelity uplink non-orthogonal multiple access

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3343908B2 (ja) * 1999-06-22 2002-11-11 日本電気株式会社 同報通信方法とそのシステム及びその基地局装置と移動局
EP1343340B1 (fr) * 2000-12-11 2007-04-25 Sharp Kabushiki Kaisha Systeme de radiocommunication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception (Release 8)", 3GPP TS 36.101, vol. 8.3.0, September 2008 (2008-09-01) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2688213A1 (fr) * 2011-03-16 2014-01-22 NEC CASIO Mobile Communications, Ltd. Dispositif d'émission sans fil, procédé de régulation de puissance et programme
EP2688213A4 (fr) * 2011-03-16 2014-11-05 Nec Casio Mobile Comm Ltd Dispositif d'émission sans fil, procédé de régulation de puissance et programme
US9661632B2 (en) 2011-03-16 2017-05-23 Nec Corporation Wireless transmission device, power control method and program

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